I'm 21, I am sexually active, had a miscarriage back in Feburary of this year with semi-regular periods afterwards. This month was very odd for me because I spotted (brown/black) for a couple days BEFORE my actual start date (on the 16th). When the 16th rolled around I had a very irregular period where I had lots of big clots, heavy bleeding then it stopped. Occasional cramping but, nothing too serious. Can anybody relate?